Traffic Panic: Multiplayer Mania! is a multiplayer-exclusive puzzle game by T-Games founder Billy Anderson for LittleBigPlanet 3, published on February 7, 2017. The level was officially announced by Anderson via his personal twitter account on the 22nd of November 2016 via a tweet stating "Announcing 'Traffic Panic: Multiplayer Mania!' - The latest addition to the twice Team Picked 'Traffic Panic!' series, coming soon!:D #TPMM".

The release date was announced four days before release on February 3, 2017 in a Twitter post by Anderson[1]. The post was subsequently re-tweeted by the official LittleBigPlanet Twitter account.

The release for Traffic Panic: Multiplayer Mania! took place on the same day that LittleBigPlanet 3 became free to download for PlayStation Plus members on PlayStation 4. Anderson stated this move was intentional in order to gain from the benefit of an increased amount of players in the game due to the promotion.

On February 10, 2017 Traffic Panic: Multiplayer Mania! was Team Picked by the community managed of LittleBigPlanet, Steven Isbell. The same day, it was featured as LittleBigPlanet 3's Level of the Day.

A project titled 'TPMM' was announced by Anderson via his personal twitter account on the 14th of November 2015 via a tweet stating "Project TPMM is a go :)"[2], however at the time it was unknown what the project was.

There was much speculation as to what the project title means, with one twitter user suggesting "traffic panic something"[3].